RECOVERY OF ORGANIC SOLUTES FROM AQUEOUS SOLUTIONS

The present invention provides, in one aspect, a novel method for recovering an organic solute from a predominantly aqueous solution. In one embodiment, the solution is contacted with a dry, non-conditioned sorbent medium held by a supporting structure, whereby the solute is absorbed onto the matrix...

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Bibliographische Detailangaben
Hauptverfasser:	ARKLES, BARRY, C, NAU, DAVID, R, SHENG, GUICHENG, GAN, KEVIN, ZHOU, HONG
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS HETEROCYCLIC COMPOUNDS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS SEPARATION STEROIDS TESTING THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention provides, in one aspect, a novel method for recovering an organic solute from a predominantly aqueous solution. In one embodiment, the solution is contacted with a dry, non-conditioned sorbent medium held by a supporting structure, whereby the solute is absorbed onto the matrix by hydrophobic interactions. A solvent is then passed through the medium, thereby desorbing the solute. Finally, the solute is collected. A further aspect of the invention provides water-wettable sorbent materials for use in solid phase extractions. Embodiments of polymer-based and silica-based sorbent materials are disclosed. L'invention concerne, dans un aspect, un nouveau procédé de récupération d'un soluté organique dans une solution essentiellement aqueuse. Dans un mode de réalisation, la solution est mise en contact avec un milieu absorbant non conditionné sec tenu par un cadre support, le soluté étant absorbé sur la matrice par des interactions hydrophobes. On passe ensuite un solvant à travers ledit milieu, ce qui désorbe le soluté. Enfin, on recueille le soluté. Dans un autre aspect de l'invention, on présente des matériaux absorbants mouillables par l'eau utilisables dans des extractions en phase solide. L'invention concerne également des matériaux absorbants à base de silice et à base de polymère.